1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a25c9e95057a0d7d671db8e8421be673bb7412b34f20ed07f6a293ded7fb83. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83312bfd-fa02-46cf-97ac-473a5ecac31e.json and https://artists.proofprofile.net/proofs/artist/83312bfd-fa02-46cf-97ac-473a5ecac31e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0632191242a6e342a8a3a4f5f1c23e927ded7e303b96a7e92c147060803785d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU1915438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6b41e31c443d4900874304b4cca08d674ce2a2bc084ad9bb400509d8c617e7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBWWA1900191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7d66dcf4843182d33412111333ed36efbc71c463554e8d867a5dd85f7db959. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBWWA1900104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a28b62878870d1375b034301181952d73d819c854432a234cf6cc1485461e64. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLV62002614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00fe604169aba7ec495598e0a65018e995e205aadd58bf137fbcb10dc123c14. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLV62002615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2b00417c24418214bd6d7a9a592330b06f0074f45c5f1f3bbe37f5042f5196. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK6822123001.
Get Outta Ma House - Thread Weaponry Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80413e7546ad40a62634cb10e2fec78d5028c2bc1aee592389c3f568e3043e1e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKCPR2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d88c4f98a4dc3f94706fbab927aa2d7671e85f7e4000471fd3676b4e6263f33. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKCPR2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe396718d9eac871f1a5dc1e9e8e89a2532dcd18a41ff8cffa912bd6918e33351. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKCPR2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f49da0cc71fc09370125ee794319cadc810c4513ee2142e6a1cb23b43386964. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKCPR2100005.
Get Outta Ma House - The Nam Shub Of Enki Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f087f2cdca4be60b1eb93c60f3d9d5cee2e845c3e165c53ab6acc8b9a92e14b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKCPR2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cac338cb2d976d1a24211b78894d1d3e6e5597e15b4e713087447a96965a08. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKCPR2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b27b0a9122aacd26eb275ceb30a83851da3e9f4a5432ce89fc28debadbfb64. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKCPR2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d90ec4e50878f32af137e2bc81cd3355fa3f0d2590b1a740f0dca4be689c32. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKN6K2001163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5625e544f0adb1ac8ed619aa56c3703ccb1664bb09d97aaf0560b44ae73f2884. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKN6K2001167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54d9f379a1496b63426a5cf80b883acfdc73a980f1f3c4d82346a336f4e168f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2053555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471af353357db81340e6f5f107229540b9e5b3d8407f791d7f61a069cdf76cd6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2053557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3f984fa387b146da51c24c726065909b14e2f2542c652fd65f670149481ad8. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2053558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc7ba0b8911111dd1be4c70ce02cac1906b7cf9b8f7352925d5128650f363ac. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK9F91500003.
Nothing But... Bass, Breaks & Beats, Vol. 01
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999a1387ef4e9a1fee5bf4ab0a0981cbc165f8f20bb0bd344646df6e8e4b2ecf. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBE281301404.